Percolator-pump.



J. B. GRIFFIN.

PERCOLATGR PUMP.

APPLICATION mtu JUNE 8.1916.

Patented J an. 1, 1918.

ATToRNEY.

- UNITED STATES PATENTOFFIGE JOHN `13. `GfItIiiEImor NEw BRITAIN. CONNECTICUT, `AssIeNoR` TOLANDERS; ERARY a y CLARIQJOF 'NEW-EBRITAIN `CONNEcrICUTy A CORPORATION or CONNECTICUT;v

PERCOLATORISUMP.

To` all wkomtlmag/ concern;

` Be itlknown that I, JOHN'B. GRIFFIN, `a

- Vcitizenof the United-States, and a resident of NewBiitain, in the county of Hartford,

\ State of Connecticut, have invented certain new and useful Improvements in Percolator- Pumps, of which the following isla `specification. v

Myinvention relates to percolator `pumps ofthe general type shown in my Patent No.

` 1,142,322. The object of thepresent invention is to provide a new and useful method of constructing and supporting the valve of aj percolator pump. "In the drawings- Figure 1 is a side view, partly in section,

y of a percolator pump embodying my invention, a portion of the percolator bowl being v shown in dotted lines. i

Fig. 2 is a detail perspective view of the sleeve.

`Referring to the drawings, a is the Well f or heating chamber for the water, on the upper end of which there is properly mounted a tube b extending upward to a'point above the container c. i The tube Z1 has an foriiice in its side as indicated at 2, through.

which the water from the bowl may enter into the Wella to be there heated and expanded `so that it would be expelled upwardlythrough the tube b.' Fitted into the lower end of the tube is a sleeve 3. As

illustrated, this sleeve is cut away adjacent `the orifice 2, as indicated att. `It is immaterial whether a section of the sleeve is entirely cut away or a portion left at the lower part as here illustrated. The vertical edges 5,0f this cut-away portion are notched as at 16leavingoverhanging tips, 7 The lower edgesof the notches preferably ]oin the vertical edges 5 by rounded corners 8, providing an easy rocking bearing for the valve. l() is the valve shaped to fit closely against the inner wall of the tube b and cover the orice 2. At either side it has wings 11 with Thewings 11 are notched as at 18, so that @the valve may `swing inwardly toward the center of the tube to permit Va full opening 0f theorifice 2.

`Specificationfof Letters Patent.

Appiicationied :rune s, 1916. serial No.1o2,4ss.

Patented. Jani, 191s.

It will be seen from this constructiongthat the sleeve 3, which is preferably of a single piece-Of metal,provides at opposite points in the tube bearings upon `which the -valve rocks without having any part 'extending across the tube to obstructthe passage of the water, or to give opportunity -for` theilodg'ement of sediment. At the same time it provides an efficient rockingsupport for the "valve, preventingthe displacement of the valve transversely of the tube and longitudinally of the sleeve, and in fact providesl an extremely simple and efficient construction. The sleeve 3 may be secured in position in the tube in any desired manner.

While in the drawings there is shown but a single orifice and a single valve, and but one side of the sleeve is cut away, still it is obvious that it could be cut away at the opposite side, and another `orifice and another valve utilized.

This invention involves the mode of operation of the structure described in my patent above mentioned, in that the valve is an upstanding valve so that the tendency of the passage of the water and steam upward in the tube is to close the valve.

In accordance with the provisions of the patent statutes, I have described the principle of operation of my invention, together with the apparatus which I now consider to p represent the best embodiment thereof; but I desire to have it understood that the apparatus shown is only illustrative, and that the invention can be carried out by other means.

I claim as my invention 1. In a percolator pump, a tube having an orifice in its Wall, a sleeve iitted within said tube and cut away at opposite points to form bearing surfaces, a valve fitting the contour of said tube to close the orifice, oppositely, extended circumferential projections at the lower edge of said valve fitted to and adapted to rock upon the bearing surfaces of said sleeve.

2. In a percolator pump, a tube having an orifice in its wall, a Sleeve fitted within said tube `and cut away at opposite points to form bearing surfaces, a valve fitting the contour of said tube to close the orifice, oppositely extended circumferential projections at the lower edge of said valve fitted to and adapted to rock upon the bearing surfaces of said sleeve, and means on said 5.15r y at-. opposite sides ,With v, Wings@ Whchflie vagainst the Wall of I said tube, pn-ojection's portion of said Wings.V

' 4. In a'peroolatoi: pump, atubehavingfan orifice in its side, YVa valve-for the orifice rlocated in'sdef of :said tube and provided `iifgopies o( l this tpatentA may be obtained fox .fromv the Wings, and a Y support positioned inY the" lower end of said tube providedjvvitlij oppositej. `rounded-v siii- V "fface's upon WhichV said=p1fojections=rest-- p Y 5. In a percolatot' pump,A a tube having anV Voriicein itsside,y a sleeve itted in the lower end vof Said tube 'out away in its yupper part oiadisstance slightly less than/halfvits 'cirpou'Inference7 notches in the vertical edge of Said cut-away portiorn anda valve located side projections enteringgsaid notches,Vv Y' v Witnesses: Q i l v lBLISS.,W- CLARK, q f i. HERBERT vrD. LISECHFIELD.' a

vWithin-said tube andoperativelypositioned l Wth-respectto Athe orie and provided with gonne. GRIFFIN@ n 

